Self-closing pendulum-hanger for doors.



J. H. STEWART.

SELF CLOSING PENDULUM HANGER FOR oooas.

APPL|CAT 10N.HLED JUNE 27-1917.

Patented Aug. 6, 19

IN VEN TOR, Jafin 1?? Siewarij WITNESS: MM

A TTORNE Y.

' and very easy in operation. It is practi-- @MTED E T JOHN H. STEWARorJAMaIca, new YORK, ASS-IGNOE'TO EE cQB'URN TRQLLEY f ,T tAcK-Mre 00.,or HOLY KE, MAssAoHUsETTs'A GQBPQBATIoNor /mssa" I CHUSETTS.

Application filed Juneav, 19'17. -ssa1 m.1w,

T 0. all hi/2,0712, it may concern .1

B e 1t lmown that 1, JOHN H. STEwAnT, Sub ect of the King of. GreatBritain, residing at Jamaica, in the, borough of Queens doors,particularly in doors for closing elevator wells, or, wherever va quickacting and quietly operating sliding door can. be conveniently used. Thepresent invention re lates to the-type of door which is supported bymeans of swinging bars or pendulum's'.

An object of the invention is; to provide a door construction which isof simple design cally noiseless, and one thatdoes away with theordinary supporting anti-friction rollers at the top and bottom edges.It is of the type shown, described, and claimedin Letters Patentgrantedto me on 'Dec. 12, 1916, No. 1,208,690. In'thepresentfconstruction the weighted end of the penduluin' is locatedwithin a compartment or inclosing casing a whlch 1s formed w1th1n thepanel-work of the door, the upper end of the pendulum be-, ingconnectedto a fixed support. A further object of the invention is toprovide means for attaching the sliding door vto another door,preferably a swinging one, that can be opened if desired to increasethewidth of the doorway, although usually only one of the doors is used ata time. The two doors are then moved asa unit. These and otherobjects'of the invention will appear in thebody of the claims.

Referring to the drawings: Figure 1 is a side elevational view showingthe sliding and swinging doors in closed position, the weighted end ofthe pendulum of the sliding door being shown in clottedlines and locatedwithin an inclosing casing which is set into thepanel work of the door,the right end portion of this figure representing the door that ispivotally connected to the door casing and with means for lock'-' ingthe'same against a swinging movement;

Fig.- 2 is a horizontal sectional view onthe line 22 of Fig. 1, the fulllines showing the doors in closed position and the dotted lines showingthe two doors swinging'out- V the cas ng 19 as well. 'Alsoattaehedftothe ward as a unit;

SELECLOSING PENDULUM-HANGER r03 noons.

Specification of Letters Patent.

, Patented Fig. 3 is a horizontal sectional view on the line 3 3 of Fig.'1 showing the lnterior'construction-of the casing in; which the weightthat operates the door is located Fig. 4'is adetjailed view of the upperend of the pendulum or bar which is attached to the normallyclosed door.This 1 figure shows the position that the doors-assume when the pendulumsupported. door is moved into a position' at 'the'side of and adjacentto the normally closed door;

Fig. 5 is 'a' sectionalelevational view on the line 5 5' of Fig-. 1showing the manner of, connecting the pendulum to theweight also showingthe manner inwhich the 1I1' closing casing for theweight is set into-thepanel workof the door. I

Referring'to the drawings in: detail: The

usual frame workor casing of the doorwa is indicated at 1, 2, anafe. Thetwo doors employed for closing the doorway areindicated at 41 and 5. Thedoor 4 is a sliding one,' bymeans of a' pendulum constructionforsupporting the same'whi'le the'door 5 is deslgned to be a sw ngmgone, the same b'e- I mg connected to the cas1ng2 by means of the'hinges6. H

Referring first to'the construction of the door 4: 7 indieate's a link'orbar, the upper end of which is pivotally connected to the fixedchanneI'and guide'iro'n 8 that-is secured tothe door 5. (see Fig. 4)byjmeansbracket 14' issecured to the panel 16 which is located at therear portionof the casing, while the bracket 15' is attached to anddepends from the bracket 14:. The weight-11 of the pivot 79. Its lowerportionii'sflpivotally is formed with a recess 17 for the purpose ofreceiving additional' weights for the proper balancing and operation ofthe door 4. L0 cated between the endsfof the" link? is a sliding andpivotal support-17' which passes through an elongated slot 18 in thebar-7. This pendulum or supporting bar is guided by means of the,swinginghousing 19. This" construction permits thependulum- 7 not onlyto have a swinging movement about the pintle'17 but a sliding movementthrough link 7 is link 20 at substantially its middle point, the upperend of which is pivotally connected to the door a by means of the pin21. It will be noticed from Fig. i that the upper end of the link '20 isbent inward so that the pintle 21 is located in the recessed or cut-outpart of the upper end of the door 4. The purpose of this is to permitthe links 7 and 20 to pass by each other in the opening and closingoperations. The pivotal. connection between the links 7 and 20 isindicated at 22. The lower end ofthe link 20 is connected to the link orbar 23 by means of the pivot 24. V The right hand end of the link 23 ispivotally connected to the swinging door 5 at its outer edge, as shownand indicated at 25. The swinging door 5 is normally locked againstmovement by means of the sliding bolts 26 which are located at the topand bottom portions of the door 5 and near the inner edge of the same.Door l is locked to the casing 1 by means of the swinging latch27 whichlatch is pivotally connected to the swinging housing 19, as indicated at28. The inner end of this latch is formed with a curved upwardlyextending portion 29 which the operator grasps to unlatch or unlock thedoor 4: and also for sliding this door into its open position asindicated by the dotted lines of the links or bars 7 and 20. Therotation ofhousing 19 causes the latch 27 to move inwardly on door 4: inopening so that it does not obstruct the opening when door 4 is openedas shown in dotted,

lines.

One of the important features of the present invention is the doing awaywith supporting and guiding rollers which in this class of inventionsare usually employed at the top and bottom edges of the movable door forsupporting the door and for reducing friction. The present constructionis wholly a pendulum device for supporting and permitting the sliding ofthe door 4:; theupper end of which is guided by means of the channeliron 8.

7 Referring now to the construction shown in Fig. 21b will be seen thatboth doors 4 and 5 are in the-closed position as indicated by the fulllines. The dotted lines indicate that the door thas been moved towardthe right by the operator, lifting the latch 27 and moving the door intoparallel relation with and adjacent to the door 5, as sho wn. If the twodoors are to be opened the bolts 26 of the door 5 are then withdrawn'fron their sockets from the sill or floor portion when the two doors canthen be readily swung outward, as shown in the dotted lines in Fig. 2,thus permitting the full width of the doorway to be utilized althoughnormally the door 5 is bolted and only the door 4 is ordinarily used.

-.It should be mentioned and understood that suitable adjusting ortake-up devices 1 but not to hold the door a open. As the operatorreleases the latch 27 the weight 11 will automatically return the doorlto its normal or closedposition again. The construction thereforeembodies a self-closing door construction of the pendulum type and onethat is very easy to operate and at the same time practically noiselessin its operation. It also provides a door that cannot be left openthrough carelessness of the operator but will close and latchautomatically upon releasing the handle insuring safety when used forclosing elevator Well openings. 7 1

An important feature of the present in vention is the fact that in theconstruction shown in the drawings whereby the usual rollers are omittedand the doors are supported entirely by the pendulums and thus producinga construction that is noiseless in operation, the pendulum bars whichare substituted to act in the place of rollers or guides performing theusual function of the rollers or guides. Another important feature inconnection with the presentinvention is the entire elimination of theusual transom construction which is required to carry the track inordinary sliding and swinging construction, whereby the noiselessfeature is produced.

' particular use as the same may be used for barn doors, house andfreight car doors, as

well as passenger and Pullman car doors and street railway. coaches, ifdesired.

VVha-t I claim is: 1. The combination with a doorway, of a pendulumsupported door therefor, comprising a bar having a pivotal connectionwith a fixed support, a weight connected to one end of the bar and tothe door, they bar'being also connected to the door, a second barconnected to the door and to the first mentioned bar, and means forpivot-ally con-- necting the second bar to a fixed support, the pivotalconnection of the first bar with the door permitting the door to travelin a straight line'during its opening and closing movements.

2. In combination, a sliding door, means for pivotally supporting thedoor compris- Such a construcution is desir-: able in hospitals andhotels where elevators nsing g, o e t 'vj o "the d r d to a fixe'd pit;ji dtiv lys e' ieh connected to the free end ofthebfi for-re turningthe door to its closed position,an'd' means connected t'o' the enginee'and fixed support, for controlling the movements of the bars and telthe door-f door to its closed position;

for normally retaining "the door in its closed Posit n, the therend of te ba e ng nected to a fixed supportfa secondb'arcom nected 'to the doorat one end, and to "said" in a line passing through its center ofgravity, the weight being confined in an inclosing casing of the door,and means connected to a support and the bar for causing the door toalways retam its vertical position during its movements.

6. A door comprising two sections, one of the sections designed forsliding movements, means for pivotally connecting the two sections ofthe door as a whole to a support to permit of a swinging movement of thetwo sections and including a bar having a sliding and pivotal connectionwith one of the door sections and attached to the other door section atone end, its other end having a weight connected thereto and to thesliding door section, a second bar connected to the said bar at a pointsubstantially midway of the length of the second bar, one end beingconnected to the sliding door section and the otherend to the other doorsection, whereby when the sliding door section is moved it will travelin a straight line and automatically return to its closed positionindependent of the movement of the other door section if the operatorreleases the same at a point in its travel or its full open position.

7. A self-closing door, comprising incombination, a pendulum or swingingbar pivotally attached to the door and a fixed support for supportingthe door, a counterbalancing weight attached to the bar for returningthe door to its initial position after being moved therefrom, meansconnected to the door and pendulum to malnt'aln the axis for pivota'lly'I"sup'plorti'ng' the" door, means" connected to" oneflof {the-bar'saffixedsupport for 1' controlling the movements of the bars and door, aweig t:connected-ta ent orflreturningthej "4 5 In a sIidi'ngQd Orjthecombinationf a bar pivotally andslidably connected to the door, one end'oi 'the' banhaving a weightpivotallyconnected thereto and to tliedoor r1511 a 15615 in" anji pnghtior vertical 051:

tioh whenconsidered wit'hrelation to itsi'niJ in combination, a pendulumor swinging bar pivotally' attached to" the door in a sliding p I I 1 awi ging"manner and 'also' pivotally 3. 111: sliding door Ithecombination'jbars' i i connected "to ai'fixedfsupport construction, I

or 1 closed position, a weightattached to the bar, means attaclie'd topendulum and doorfor' 'controllin g'the 'posltion' of the door; dur

mg *its movements, and f a" latch connected wthe pendulum; wherebywhenth'e door is operated the latch will be simultaneously moved in?unison with r the pendulum i-nto and but of latching position."

'*9L -K"self- -closing do r," comprising in com 1 .bine ng wwine bar ,gn fia o e door, and to a fixed support, respectively'yacounter-balancing weight for moving the door and attached to the bar anddoor for automatically returning the door to its initial position, twolinks 20 and 23, one being connected to the swinging bar and door andthe other to saidlink and support for controlling the position of thedoor during its movements. V

- 10. In a self-closing door construction the combination, of two doorsections, a bar pivotally connected to one door and to a second door forsupporting the first door, a

weight attached to the first door and bar for. returning the first doorin its initial position, the second door lbeing pivotally connected tothe casing or door frame, two links connected together, one end of onelink being connected to the first door and its supporting bar and theother end of the other link being connected to the second door forcontrolling the. movements of the first door, whereby when the firstdoor is moved to its open position adjacent the second door the twodoors, as a unit, may be swung on the pivotal connecting means whichsupports the second door.

11. A self-closing door, comprising, in

combination, a .bar pivotally and slidably connected to the door at apoint in a line passing through its center of gravity, a weightconnected to the lower'end of the bar, said bar being in a normalinclined position and connected to a fixed support at its' upper end,means comprising links for for sliding movements into a position paral-olel with the othersection, said other section having a pivotalconnection with the maintaining thedoor during its movement 1 m avertlcal pos1t1on, and a latch connected 7 to the bar and movabletherewith for plac door casing for swinging movements, a supporting barattached to. thevsliding section and to the swinging section, a weightat:-

tached to the bar and sliding section, links connected to the slidingsection, bar and swinging section for maintaining the slidmg section 111a vertical positionasx the sl1dcombination, of means for supporting the;

door to permit sliding movements to its open position and toautomatically return to its closed position,;said means including apendulum bar pivotally connected to a fixed support near its upper endand asliding and pivotal connection With the door near lower end, aWeight connected to the door and to the lower end. of the pendulum bar,

as described; and meansvfor maintaining the door. 1n a vertical positionduring its movements.

151,111 a sliding door construction, means I for supportlng the same topermit the door to be opened and to automatically return to its initialor closed position including a pendnlum bar having a pivotal connectionwith a fixed. support for operating the door and a;

sliding and pivotal connection with-the door to permit lateral movementof the door, and

movements,

J OHN STEWART- Copies of this patent maybe obtained. for five centseach, by addressing the commissioner of Patents,

Washingtoml), G.

